Joint for gates, doors, &amp;c.



PATENTED MAY 17, 1904. J. STEVENS. JOINT FOR GATES, DOORS, 8w.

APPLICATION FILED EAR. 26. 1903.

R0 MODEL.

fig. a

I 1 v y I r Patented May 17, 1904.

UNITED STATES PATENT OFFICE.

JOHN STEVENS, OF PHILADELPHIA, PENNSYLVANIA.

JOINT FOR GATES, DOORS5-&C-

SPECIFICATION forming part of Letters Patent No. 759,929, dated May 1'7,1904.

Application filed arch 25, 1903- To all whom it may concern:

Be it known that I, JOHN STEVENS, ofthe city and county of Philadelphia,State of Pennsylvania, have invented an Improvement in Joints for Gates,Doors, &c., of which the following is a specification.

It is the object of my invention to provide a joint for gates, doors,and the like in which the pieces composing the gate may be firmly andexpeditiously united without the necessity of mortising or cutting thepieces or fitting them together. This object I accomplish by means ofmetal clamping-plates of special construction, which are secured to thefaces of the two pieces and united together.

My improved joint is especially adapted for sliding gates or doors, suchas are .used at elevator hatchways or openings, and to this end theclamping-plates are so constructed as to form a running jaw for thegate. In swinging or hinged gates this jaw may also be used for thehinge connection.

In the drawings, Figure 1 is an elevation of an elevator-gate embodyingmy invention. Fig. 2 is a plan view, enlarged, of a portion of the same.Fig. 3 is a longitudinal horizontal section of the portion of the gateshown in Fig. 2, and Fig. 4 is a vertical section on the line 4 4L ofFig. 2.

I have shown my invention applied to a sliding gate adapted to anelevator-hatchway. The gate is composed of the usual uprights a a andcross-pieces 6 and is adapted to slide vertically on the usual ways 0 c.The ends of the cross-pieces 5 are butted upon the edges of the uprightsa, and the pieces 6 and a are secured together by the clamping-plates (Z(Z, placed upon the sides of the pieces a 5 and fastened to them bybolts or screws 0 e. The plate (Z at one end. is formed with a wideportion f of a breadth sufficient to extend partly over each of thepieces a b and having horizontal lateral lugs g g at the top and bottom,which project over the top edges of the crosspiece Z). The plate has aforward extension h from the portion f, which extends over the face ofthe upright a and projects beyond its edge, as shown at c'. Thisprojection '11 is formed with a lateral vertical lug j, .which pro-Serial No. 149,413. (No model.)

jects over the edge of the upright. The two plates cl (Z are placed oneon each side of the two pieces a b and are bolted or fastened togetherby the bolt 0 through the piece 6 and by the bolt or bolts 0 through thepiece a. The portions ff, with their four lugs 9, form a socket for theend of the cross-piece Z), and the upright a is securely clamped againstthe end of the cross-piece between the side extension it and the lugs j,which with the projections 71 form parallel jaws, which are guided onthe way 0. Thus the uprights and crossbars are firmly clamped togetherwithout mortising, and the clamps themselves form the running jaws whichengage the ways.

In practice it is usual to connect the top and bottom cross-pieces I) bwith the uprights, as shown, thus forming two sets of running jaws oneach side. When the gate is formed with an intermediate cross-bar I), asshown, that bar may also be clamped to the uprights in the same manner;but that is not necessary, and any usual means of securing said bar maybe resorted to.

The particular use of the gate or door, whether as a sliding or otherdoor or gate, is not material to the invention.

What I claim as new, and desire to secure by Letters Patent, is asfollows:

1. In a joint for gates, &c., the combination with two pieces to beunited arranged with the end of one piece butted against the edge of theother piece, of clamping-plates located on the opposite side faces ofsaid pieces and having theirouter ends extending beyond the outer edgeof one of said pieces to form parallel jaws said jaws being eachprovided with a lateral lug 7' located at a distance from the extremityextending part way over said outer edge of the latter piece, and meansfor securing said plates together and to said pieces embracing a boltpassing through one of said pieces and holding said lugs jy' in contactwith the outer edge of the other piece, thereby clamping the latterpiece between said lugs and the end of the first piece.

2. In a joint for gates, 860., the combination with two pieces to beunited arranged with the end of one piece butted against the edge of theother piece, of clamping-plates located on the opposite side faces ofsaid pieces and each pro vided on the upper and lower edges with laterallugs g g extending part way over the upper and lower edges of the innerpiece and having their outer ends extending beyond the outer edge of oneof said pieces to form parallel jaws being each provided with a laterallug j extending part way over said outer edge of the latter piece, andmeans for securing said plates together and to said pieces.

3. The clamping-plate for the purpose de' scribed having a fiat innerface and formed at one end with a wide portion f having the lateral lugsg g projecting from its upper and lower edges and at the other end witha for- JOHN STEVENS.

WVitnesses:

ERNEST HOWARD HUNTER, R. M. KELLY.

